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Name:_________________________________________Date:___________________Hour:___________ Kinetic and Potential Energy Problem Set KINETIC ENERGY SHOW ALL WORK! 1. What is the kinetic energy of a jogger with a mass of 65.0 kg traveling at a speed of 2.5 m/s? 2. What is the mass of a baseball that has a kinetic energy of 105 J and is traveling at 10 m/s? 3. What is the kinetic energy of a 0.38 kg soccer ball that is traveling at a speed of 120 m/s? 4 What is the kinetic energy of a 0.50 kg ball travelling at a speed of 120 m/s ? 5. What is the kinetic energy of a 0.50 kg ball that is travelling at a speed of 40 m/s Gravitational Potential Energy Ep = m x g x h 1. Find the gravitational potential energy of a light that has a mass of 13.0 kg and is 4.8 m above the ground. 2. An apple in a tree has a potential energy of 175 J and a mass of 0.36 kg. How high from the ground is the apple? 3. A marble is on a table 2.4 m above the ground. What is the mass of the marble if it has a potential energy of 568 J. 4. A box with a mass of 12.5 kg sits on the floor. How high would you need to lift it for it to have a Ep of 355J ? 5. A cart at the top of a 300 m hill has a mass of 40 kg. What is the cart’s Ep ?